http://thesaurus.reference.com/browse/obnoxious
A sod.
The correct spelling is "obnoxious" referring to behavior, meaning unpleasant, boorish, or irritating.
It means that you are annoying
Obnoxious
obsessive obnoxious outstanding optimistic
burt ward. he was a very obnoxious person and an unpleasant drunk.
A "know-all" or in US a "know-it-all"
That boy is so obnoxious.
anal personality self centered pompous arrogant intolerant ignorant republican
Too drunk fighting being obnoxious
Obnoxious is an adjective--an obnoxiousperson.